口头语义专业知识与左侧和右侧前叶之间的功能连接性降低有关
Wei Wu1,2, Paul Hoffman1
1School of Philosophy, Psychology & Language Sciences, University of Edinburgh, 7 George Square, Edinburgh EH8 9JZ, United Kingdom.
Cerebral cortex (New York, N.Y. : 1991)
|June 19, 2024
概括
先进的语言语义知识与左侧和右侧前叶 (ATL) 之间的功能连接性较弱相关. 这表明ATL半球专业化与详细的词汇开发一起出现,特别是从阅读中.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 心理语言学 心理语言学
背景情况:
- 前叶 (ATLs) 对语义表示非常重要.
- 左ATL和右ATL之间存在功能专业化,左ATL倾向于语言处理.
研究的目的:
- 调查ATL中半球专业化的认知基础.
- 检查口头语义专业知识和ATL中的功能连接之间的关系.
主要方法:
- 在两个独立的数据集 (n=86,n=642) 上利用静止状态功能磁共振成像 (fMRI).
- 使用词汇测试测量口头语义专业知识.
- 分析了静止状态的功能连接,作为ATL之间的功能分离的代理.
主要成果:
- 在两个数据集中,更高的语言语义知识与左侧和右侧腹部ATL之间的功能连接性降低有关.
- 这种效应是特定于半球间ATL连接,并没有观察到半球内语义连接或其他认知任务.
- 在一个数据集中,观察到左右下额 (IFG) 连接的类似模式.
结论:
- 半球在ATL中的专业化似乎是一种新兴的属性,而不是天生的.
- 它随着获得详细的口头语义知识而发展,可能是由左ATL与书面文字识别系统的更强的联系推动的.
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